Oxysterols derived from cholesterol (WP4545)

Homo sapiens

The Oxysterol group of compounds are oxygenated derivatives of cholesterol or its sterol precursors, e.g. 7-dehydrocholesterol (7-DHC) or desmosterol. There are three mechanisms leading to the formation of oxysterols: 1) Enzymatically (first steps of sterol metabolism, being intermediates for the formation of steroid hormones, bile acids and 1,25-dihydroxyvitamin D3), 2) Non-enzymatically by encountering reactive oxygen species (ROS), providing a second pool of metabolites (this pool also includes oxidized cholesterol molecules taken in from diet), see https://www.wikipathways.org/instance/WP5064, and 3) Generation by the gut microflora and uptake through the enterohepatic circulation. Previously oxysterols where though to be inactive metabolic intermediates, however recent findings have established that these metabolites are involved in cholesterol homoeostasis, can be ligands to nuclear and G protein-coupled receptors and biomarkers of diseases (for example Niemann-Pick disease). This pathway drawing was inspired by Figure 3 of the review article by Griffiths et al. 2016, and has been extended with immune system, receptor agonists, steroidal alkaloid and biomarker information from the same paper. This pathway has been updated with Figure 1 from Griffiths et al. 2020 (green areas), Figure 2 (yellow area) and Figure 3 (blue area).

Authors

Denise Slenter , Egon Willighagen , Friederike Ehrhart , Conroy lipids , Robert Andrews , William J Griffiths , Alex Pico , and Eric Weitz

Activity

last edited

Discuss this pathway

Check for ongoing discussions or start your own.

Cited In

Are you planning to include this pathway in your next publication? See How to Cite and add a link here to your paper once it's online.

Organisms

Homo sapiens

Communities

Inherited Metabolic Disorders (IMD) Pathways Lipids and LIPID MAPS Rare Diseases

Annotations

Disease Ontology

cerebrotendinous xanthomatosis alpha-methylacyl-CoA racemase deficiency Niemann-Pick disease type B Niemann-Pick disease congenital bile acid synthesis defect 6 Niemann-Pick disease type C1 D-bifunctional protein deficiency Niemann-Pick disease type A congenital bile acid synthesis defect

Cell Type Ontology

CD4-positive helper T cell

Pathway Ontology

familial hypercholanemia pathway cerebrotendinous xanthomatosis pathway classic metabolic pathway sterol regulatory element-binding protein signaling pathway cholesterol metabolic pathway

Participants

Label Type Compact URI Comment
3beta-hydroxy-7beta-N-acetylglucosaminylchol-5-en-24-oyltaurine Metabolite lipidmaps:LMST04010472
BA-delta5-3beta,7beta-diol 7betaGlcNAc Metabolite lipidmaps:LMST04010467
3beta-hydroxy-7beta-N-acetylglucosaminylchol-5-en-24-oylglycine Metabolite lipidmaps:LMST04010471
5,6-epoxycholesterolsulfate Metabolite lipidmaps:LMST05020067
3beta-Sulfooxy-7beta-N-acetylglucosaminylchol-5-en-24-oic acid Metabolite lipidmaps:LMST04010468
7α,24R-Dihydroxy-3-oxocholest-4-en-(25R)26-oyl-CoA Metabolite lipidmaps:LMST04030256
7α,12α−Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030114 aka 7alpha-hydroxycholest-4-en-3-one
7β,(25R)26-Dihydroxycholesterol Metabolite lipidmaps:LMST04030178 AKA 7β,26-dihydroxycholesterol (7β,26-diHC).
7α-Hydroxy-3-oxocholest-4,24(E)-dien-26-oyl-CoA Metabolite lipidmaps:LMST04030258
histamine Metabolite wikidata:Q61233
7α-Hydroxy-3-oxochol-4-en-24-oyl-CoA Metabolite lipidmaps:LMST04010462
7α(25S)26-Dihydroxycholesterol Metabolite lipidmaps:LMST01010466 aka 7α,(25S)26-dihydroxycholesterol
3α,7α,12α−Trihydroxy-5β-cholestan-(25R)26-oic acid Metabolite lipidmaps:LMST04030151 AKA (25R)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-oic acid
7α-Hydroxy-3-oxochol-4-en-24-oyl-taurine Metabolite lipidmaps:LMST05040022
Dendrogenin A Metabolite lipidmaps:LMST05050025 AKA Dendrogenin A
5β-Cholestane-3α,7α,12α,(25R)26-tetrol Metabolite lipidmaps:LMST04030160 aka (25R)-5beta-cholestane-3alpha,7alpha,12alpha,26-tetrol
Cholesterol Metabolite lipidmaps:LMST01010001
7α,24S-Dihydroxy-3-oxocholest-4-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030247
7α,25-Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030107 aka 7α,25-dihydroxycholest-4-en-3-one
7α-Hydroxy-3-oxocholest-4-en-(25S)26-oyl-CoA Metabolite lipidmaps:LMST04030253 aka 7α-Hydroxy-3-oxocholest-4-en-(25S)26-oyl-CoA
24S-hydroxycholesterol Metabolite lipidmaps:LMST01010019 AKA 24S-hydroxycholesterol
Can corss the Blood-Brain-Barrier (to remove cholesterol from brain tissue) [PMID:8790411; 9717719]
7α-Hydroxy-3-oxocholest-4-en-(25R)26-oyl-CoA Metabolite lipidmaps:LMST04030252 aka 7α-Hydroxy-3-oxocholest-4-en-(25R)26-oyl-CoA
7α,24S-Dihydroxy-3-oxocholest-4-en-(25R)26-oyl CoA Metabolite lipidmaps:LMST04030251
7α,12α,(25R)26-Trihydroxy-5β-cholestan-3-one Metabolite lipidmaps:LMST04030246 aka 7α,12α,(25R)26-TriHydroxy-5β-cholestan-3-one
3β,7α-Dihydroxycholest-5-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030241 Aka 3β,7α-dihydroxycholest-5-en-(25R)26-oic acid
7α,25-Dihydroxycholesterol Metabolite lipidmaps:LMST04030166 aka 7α,25-dihydroxycholesterol
'the most potent EBI2 agonist 7α,25-dihydroxycholesterol (7α,25-diHC))' [PMID:31698146]
7α-Hydroxy-3-oxochol-4-en-24-oic acid Metabolite lipidmaps:LMST04010239
7α-Hydroxy-3-oxochol-4-en-24-oyl-glycine Metabolite lipidmaps:LMST05030020
7α−Hydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030123 aka 7α-hydroxycholest-4-en-3-one
7α-Hydroxy-3,24-bisoxocholest-4-en-(25R)26-oyl-CoA Metabolite lipidmaps:LMST04030254
5α,6α-Epoxycholesterol Metabolite lipidmaps:LMST01010011 AKA 5,6α-epoxycholesterol
Cholestane-3β,5α,6β-triol Metabolite lipidmaps:LMST01010510 AKA cholestane-3β,5α,6β-triol
'Biomarker for NPC1; elevated levels of cholestane-3β,5α,6β-triol in plasma from NPC1 patients.' [PMID: 21048217].
7β-Hydroxycholesterol Metabolite lipidmaps:LMST01010047 AKA 7β-hydroxycholesterol (7β-HC)
7α-Hydroxycholesterol Metabolite lipidmaps:LMST01010013 AKA 7α-hydroxycholesterol (7α-HC)
25-Hydroxycholesterol Metabolite lipidmaps:LMST01010018 AKA 25-Hydroxycholesterol
Produced by macrophages [PMID: 19805370, 19502589, 23273843], in vivo [PMID: 25104388].
7α,25-Dihydroxycholesterol Metabolite lipidmaps:LMST04030166 AKA 7α,25-Dihydroxycholesterol
Involved in immune response (agonist of G-protein-coupled receptor EBI2 (AKA GPR183)) [PMID: 21796212, 21796211].
(25R)26-Hydroxycholesterol Metabolite lipidmaps:LMST01010088 'AKA (25R)26-hydroxycholesterol; Named with systematic nomenclature, where hydroxylation at the terminal side chain of cholesterol is on C-26 leading to 26-hydroxycholesterol (26-HC) which may have 25R or 25S stereochemistry [26]. Unless stated otherwise 25R stereochemistry is assumed. In much of the literature (25R)26-HC is referred to 27-hydroxycholesterol (27-HC), presumably the 25R isomer.' [PMID:22366074]
'26-HC, 25R-stereochemistry is assumed unless indicated otherwise, also called 27-hydroxycholesterol' [PMID:31698146]
7α,(25R)26-Dihydroxycholesterol Metabolite lipidmaps:LMST01010462 AKA 7α,26-dihydroxycholesterol; 7-alpha, (25R)26-diHC
7α−Hydroxycholest-4-en-3-one Metabolite chebi:17899 aka 7α-hydroxycholest-4-en-3-one
'7α−HCO is a ligand to the pregnane X receptor (PXR), a member of the nuclear receptor superfamily' [PMID:31698146]
7α-Hydroxycholesterol Metabolite lipidmaps:LMST01010013 AKA 7α-hydroxycholesterol (7α-HC)
7α(25S)26-Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST01010465 aka 7α,(25S)26-dihydroxycholest-4-en-3-one
7α,12α−Dihydroxy-5β-cholestan-3-one Metabolite lipidmaps:LMST04030113 aka 7alpha,12alpha-dihydroxy-5beta-cholestan-3-one
5β-Cholestane-3α,7α,12α−triol Metabolite lipidmaps:LMST04030035 aka 5beta-cholestane-3alpha,7alpha,12alpha-triol ; trihydroxycoprostane
3β-Hydroxycholest-5-en-(25R)-26-oicacid Metabolite lipidmaps:LMST04030072 'AKA (25R)-3beta-hydroxycholest-5-en-26-oic acid; 3β-HC-5-en-(25R)26-oic acid
'Pathway starting from this metabolite to 3β,7alpha-HCA is considered the acidic or alternative PW of bile acid biosynthesis' [PMID:31698146,12543708]
7α,(25R)26−Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST01010463 aka (25R)-7alpha,26-dihydroxycholest-4-en-3-one
7α-Hydroxy-3-oxocholest-4-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030242 aka 7-Hydroxy-3-oxocholest-4-en-(25R)26-oic acid
7α, 12α,(25R)26−Trihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST01010464 aka 7alpha,12alpha,(25R)26-trihydroxycholest-4-en-3-one
7α,12α-Dihydroxy-3-oxocholest-4-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030243 aka 7-alpha,12-alpha-diHydroxy-3-oxocholest-4-en-(25R)26-oic acid (not available in Wikidata)
7α,12α-Dihydroxy-3-oxo-5β-cholestan-(25R)26-oic acid Metabolite lipidmaps:LMST04030245 aka 7α,12α-diHydroxy-3-oxo-5β-cholestan-(25R)26-oic acid
7α,12α,25-Trihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030105 aka 7α,12α,25-Trihydroxycholest-4-en-3-one
7α,25-Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030107 aka 7α,25-Dihydroxycholest-4-en-3-one, 7a,25-diHCO.
7α,25-Dihydroxy-3-oxocholest-4-en-26-oic acid Metabolite lipidmaps:LMST04030263 aka 7a,25-Dihydroxy-3-oxocholest-4-en-26-oic acid; 7alpha,25-diH,3O-CA
Found in human plasma and cerebrospinal fluid (CSF) [PMID:29960034]; reduced levels found in Alzheimers disease.
7α,12α-Dihydroxy-3-oxochol-4-en-24-oic Metabolite lipidmaps:LMST04010241 aka 7a,12a-Dihydroxy-3-oxochol-4-en-24-oic acid
7α,12α,25-Trihydroxycholest-4-en-3,24-dione Metabolite lipidmaps:LMST04030249 aka 7α,12α,25-Trihydroxycholest-4-en-3,24-dione
Cholic acid Metabolite lipidmaps:LMST04010001
7α,12α,24,25-Tetrahydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030248 aka 7α,12α,24,25-Tetrahydroxycholest-4-en-3-one
7α,24S-Dihydroxycholest-4-en-3-one Metabolite lipidmaps:LMST04030216 aka 7α,24S-Dihydroxycholest-4-en-3-one
7α,24S-Dihydroxy-3-oxocholest-4-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030247 aka 7α,24S-Dihydroxy-3-oxocholest-4-en-26-oic acid
Identified in human plasma [PMID:29960034] and CSF [PMID:30578919,29960034]
7α,24S-Dihydroxycholesterol, Metabolite lipidmaps:LMST04030168 aka 7α,24S-Dihydroxycholesterol,
Found in human plasma [PMID:31009661]
24S-Hydroxycholesterol Metabolite lipidmaps:LMST01010019 AKA (24S)-hydroxycholesterol
Can corss the Blood-Brain-Barrier (to remove cholesterol from brain tissue) [PMID:8790411; 9717719]
7α-Hydroxy-3-oxocholest-4-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030242 aka 7-Hydroxy-3-oxocholest-4-en-(25R)26-oic acid
Cholic acid Metabolite lipidmaps:LMST04010001
Chenodeoxycholic acid Metabolite lipidmaps:LMST04010032
3β,7β-Dihydroxycholest-5-en(25R)26-oic acid Metabolite lipidmaps:LMST04030235
3β,7β-Dihydroxychol-5-en-24-oic acid Metabolite lipidmaps:LMST04010218
7-Dehydrocholesterol Metabolite lipidmaps:LMST01010069
7-Oxocholesterol Metabolite lipidmaps:LMST01010049
26-Hydroxy-7-oxocholesterol Metabolite lipidmaps:LMST04030180
3β-Hydroxy-7-oxocholest-5-en-(25R)26-oic acid Metabolite lipidmaps:LMST04030239
3β-Hydroxy-7-oxochol-5-en-24-oic acid Metabolite lipidmaps:LMST04010394
3β,5α-Dihydroxycholestan-6-one Metabolite lipidmaps:LMST01010126
SULT2A1 GeneProduct uniprot:Q06520
UGT3A1 GeneProduct uniprot:Q6NUS8
SULT2B1 GeneProduct uniprot:O00204
AKR1C4 GeneProduct hgnc.symbol:AKR1C4
BACS (SLC27A5) GeneProduct hgnc.symbol:SLC27A5 Bile Acid CoA ligase (or synthetase)
microsomal protein mostly expressed in liver [PMID:24309898, 25409824(mouse)]
CYP3A4 GeneProduct hgnc.symbol:CYP3A4 CYP3A11 in mouse is responsible for this conversion! [pmid:31698146;11454857]
AKR1D1 GeneProduct hgnc.symbol:AKR1D1 Reduction and oxidation (presumably by AKR1D1 and AKR1C4) may precede before or after 24-hydroxylation.
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
HSD3B7 GeneProduct hgnc.symbol:HSD3B7
CYP8B1 GeneProduct hgnc.symbol:CYP8B1
DBP GeneProduct hgnc.symbol:DBP D-biofinctional protein; aka MFE2, HSD17B4
ACOX2 GeneProduct hgnc.symbol:ACOX2
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
BAAT GeneProduct hgnc.symbol:BAAT amino acid N-acyl transferase
AMACR GeneProduct hgnc.symbol:AMACR alpha-methylacyl-CoA racemase
broadly expressed [PMID:24309898, 25409824(mouse)]
SCPx (SCP2) GeneProduct hgnc.symbol:SCP2
AKR1C4 GeneProduct hgnc.symbol:AKR1C4
CYP3A4 GeneProduct hgnc.symbol:CYP3A4 Alternative protein to CH25H for hydroxylation
AKR1D1 GeneProduct hgnc.symbol:AKR1D1
LBP GeneProduct hgnc.symbol:LBP L-bifunctional protein, aka MFP1, enoyl-CoA hydratase and 3-hydroxacyl CoA dehydrogenase EHHADH).
CYP8B1 GeneProduct hgnc.symbol:CYP8B1
VLCS (SLC27A2) GeneProduct hgnc.symbol:SLC27A2 very-long chain acyl-CoA synthetase
expressed mostly in liver and kidney, and present in ER and peroxisome [PMID:24309898, 25409824(mouse)]
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
CYP8B1 GeneProduct hgnc.symbol:CYP8B1
AKR1D1 GeneProduct hgnc.symbol:AKR1D1
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
CYP8B1 GeneProduct hgnc.symbol:CYP8B1
HSD3B7 GeneProduct hgnc.symbol:HSD3B7
CYP39A1 GeneProduct hgnc.symbol:CYP39A1 Mostly expressed in liver, also in brain [PMID:24309898,25409824 (mouse)]
CYP27A1 GeneProduct hgnc.symbol:CYP27A1
AKR1C4 GeneProduct hgnc.symbol:AKR1C4 Reduction and oxidation (presumably by AKR1D1 and AKR1C4) may precede before or after 24-hydroxylation.
BACS (SLC27A5) GeneProduct hgnc.symbol:SLC27A5 Bile Acid CoA ligase (or synthetase)
microsomal protein mostly expressed in liver [PMID:24309898, 25409824(mouse)]
VLCS (SLC27A2) GeneProduct hgnc.symbol:SLC27A2 very-long chain acyl-CoA synthetase
expressed mostly in liver and kidney, and present in ER and peroxisome [PMID:24309898, 25409824(mouse)]
AKR1D1 GeneProduct hgnc.symbol:AKR1D1
AKR1C4 GeneProduct hgnc.symbol:AKR1C4
BACS (SLC27A5) GeneProduct hgnc.symbol:SLC27A5 Bile Acid CoA ligase (or synthetase)
microsomal protein mostly expressed in liver [PMID:24309898, 25409824(mouse)]
AMACR GeneProduct hgnc.symbol:AMACR alpha-methylacyl-CoA racemase
broadly expressed [PMID:24309898, 25409824(mouse)]
ACOX2 GeneProduct hgnc.symbol:ACOX2
DBP GeneProduct hgnc.symbol:DBP D-biofinctional protein; aka MFE2, HSD17B4
SCPx (SCP2) GeneProduct hgnc.symbol:SCP2
INSIG Protein uniprot:O15503
CYP3A4 Protein uniprot:P08684 Reaction also occurs in mouse: CYP3A11
IL-17A Protein uniprot:Q16552 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
CYP7B1 Protein uniprot:O75881
DHCR7 Protein uniprot:Q9UBM7 'ChEH is a dimer of 7-dehydrocholesterol reductase (DHCR7) and 3β-hydroxysteroid-Δ8-Δ7-isomerase (D8D7I)'
the 3beta-hydroxysteroid delta7 reductase (DHCR7), which is the regulatory subunit. [https://en.wikipedia.org/wiki/Cholesterol-5,6-oxide_hydrolase]
HSD3B7 Protein uniprot:Q9H2F3
ACOT1 Protein uniprot:Q86TX2
EBI2 Protein uniprot:P32249
HSD3B7 Protein uniprot:Q9H2F3
LXR-alpha Protein uniprot:P13133
D8D7I Protein uniprot:Q15125 'ChEH is a dimer of 7-dehydrocholesterol reductase (DHCR7) and 3β-hydroxysteroid-Δ8-Δ7-isomerase (D8D7I)'
also known as the emopamyl binding protein (EBP), which is the catalytic subunit [https://en.wikipedia.org/wiki/Cholesterol-5,6-oxide_hydrolase]
EBI2 Protein uniprot:P32249 AKA G protein-coupled receptor EBI2 (GPR183)
Estrogen receptor alpha Protein uniprot:P03372 Expressed in vascular cells.
PXR Protein uniprot:O75469
ROR-γt Protein uniprot:F1D8P6 AKA RAR-related orphan receptor gamma (RORγt); consists of 2 isoforms: RORγ and RORγt. This nuclear receptor is required for generating IL-17-producing CD4(+) Th17 T cells.
'RORγt (also known as RORγ2) – produced from an mRNA identical to that of RORγ, except that the two 5'-most exons are replaced by an alternative exon, located downstream in the gene. This causes a different, shorter N-terminus.' [https://en.wikipedia.org/wiki/RAR-related_orphan_receptor_gamma]
ACOT Protein eccode:3.1.2.2 acyl-CoA thioesterase are a group of enzymes
CYP27A1 Protein uniprot:Q02318
CYP27A1 Protein uniprot:Q02318
CYP7A1 Protein uniprot:P22680 cholesterol 7 alpha-hydroxylase, the rate-limiting enzyme in bile acid biosynthesis.
'the transcript of which is almost exclusively expressed in liver' [PMID:31698146]
CYP27A1 Protein uniprot:Q02318
CYP7B1 Protein uniprot:O75881
CH25H Protein uniprot:O95992 AKA cholesterol 25-hydroxylase
CYP46A1 Protein uniprot:Q9Y6A2 Responsible for cholesterol homeostasis in brain [PMID:8790411]. Expressed mainly in Brain, however also small quantities in testis and ovary [PMID:24309898,25409824(mouse)].
ChEH Protein uniprot:P34913 AKA cholesterol epoxide hydrolase (ChEH); EC: 3.3.2.11
'ChEH is a dimer of 7-dehydrocholesterol reductase (DHCR7) and 3β-hydroxysteroid-Δ8-Δ7-isomerase (D8D7I)'
IL-17B Protein uniprot:Q9UHF5 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
IL-17C Protein uniprot:Q9P0M4 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
IL-17D Protein uniprot:Q8TAD2 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
IL-17E Protein uniprot:Q9H293 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
IL-17F Protein uniprot:Q96PD4 'IL-17 familiy is essential in host defense and may play key pathogenic roles in autoimmune diseases.' [PMID: 25092323]
Estrogen receptor beta Protein uniprot:Q92731 Expressed in vascular cells.
LXR-beta Protein uniprot:P55055
CYP27A1 Protein uniprot:Q02318
CYP27A1 Protein uniprot:Q02318
LXR-alpha Protein uniprot:P13133
LXR-beta Protein uniprot:P55055
EBI2 Protein uniprot:P32249
ACOT2 Protein uniprot:P49753 'originally thought to be in peroxisome [PMID:10944470)], later found to be mitochondrial [PMID:16940157]' [https://www.uniprot.org/uniprot/P49753]
ACOT4 Protein uniprot:Q8N9L9 'Compared to mouse peroxisomal succinyl-coenzyme A thioesterase/ACOT4, the human enzyme has a broad substrate specificity overlapping the activity of three mouse acyl-coenzyme A thioesterases, providing an explanation for the unexpectedly low number of acyl-coenzyme A thioesterase genes in the human genome [PMID:16940157]' [https://www.uniprot.org/uniprot/Q8N9L9]
ACOT6 Protein uniprot:Q3I5F7
ACOT7 Protein uniprot:O00154
ACOT8 Protein uniprot:O14734
ACOT9 Protein uniprot:Q9Y305
ACOT11 Protein uniprot:Q8WXI4
ACOT12 Protein uniprot:Q8WYK0
ACOT13 Protein uniprot:Q9NPJ3
ACOT7L Protein uniprot:Q6ZUV0 'Could be the product of a pseudogene. The peptide used to produce antibodies against ACOT7L matches at 85% with ACOT7 and the antibodies may not be specific to ACOT7L.' [https://www.uniprot.org/uniprot/Q6ZUV0]
ACOT15 Protein uniprot:Q8N1Q8
ACOT Protein eccode:3.1.2.2 acyl-CoA thioesterase are a group of enzymes
CYP27A1 Protein uniprot:Q02318
DHCR7 Protein uniprot:Q9UBM7
HSD11B1 Protein uniprot:P28845
CYP27A1 Protein uniprot:Q02318
HSD11B2 Protein uniprot:P80365
HSD11B1 Protein uniprot:P28845
HSD11B2 Protein uniprot:P80365
HSD11B2 Protein uniprot:P80365

References

  1. Cloning and regulation of cholesterol 7 alpha-hydroxylase, the rate-limiting enzyme in bile acid biosynthesis. Jelinek DF, Andersson S, Slaughter CA, Russell DW. J Biol Chem. 1990 May 15;265(14):8190–7. PubMed Europe PMC Scholia
  2. Molecular cloning and sequence analysis of cDNA encoding human cholesterol 7 alpha-hydroxylase. Noshiro M, Okuda K. FEBS Lett. 1990 Jul 30;268(1):137–40. PubMed Europe PMC Scholia
  3. 7 alpha hydroxylation of 25-hydroxycholesterol in liver microsomes. Evidence that the enzyme involved is different from cholesterol 7 alpha-hydroxylase. Toll A, Wikvall K, Sudjana-Sugiaman E, Kondo KH, Björkhem I. Eur J Biochem. 1994 Sep 1;224(2):309–16. PubMed Europe PMC Scholia
  4. Activation of the nuclear receptor LXR by oxysterols defines a new hormone response pathway. Lehmann JM, Kliewer SA, Moore LB, Smith-Oliver TA, Oliver BB, Su JL, et al. J Biol Chem. 1997 Feb 7;272(6):3137–40. PubMed Europe PMC Scholia
  5. Markedly reduced bile acid synthesis but maintained levels of cholesterol and vitamin D metabolites in mice with disrupted sterol 27-hydroxylase gene. Rosen H, Reshef A, Maeda N, Lippoldt A, Shpizen S, Triger L, et al. J Biol Chem. 1998 Jun 12;273(24):14805–12. PubMed Europe PMC Scholia
  6. Activities of recombinant human cytochrome P450c27 (CYP27) which produce intermediates of alternative bile acid biosynthetic pathways. Pikuleva IA, Babiker A, Waterman MR, Björkhem I. J Biol Chem. 1998 Jul 17;273(29):18153–60. PubMed Europe PMC Scholia
  7. cDNA cloning of mouse and human cholesterol 25-hydroxylases, polytopic membrane proteins that synthesize a potent oxysterol regulator of lipid metabolism. Lund EG, Kerr TA, Sakai J, Li WP, Russell DW. J Biol Chem. 1998 Dec 18;273(51):34316–27. PubMed Europe PMC Scholia
  8. cDNA cloning of cholesterol 24-hydroxylase, a mediator of cholesterol homeostasis in the brain. Lund EG, Guileyardo JM, Russell DW. Proc Natl Acad Sci U S A. 1999 Jun 22;96(13):7238–43. PubMed Europe PMC Scholia
  9. Structure and functions of human oxysterol 7alpha-hydroxylase cDNAs and gene CYP7B1. Wu Z, Martin KO, Javitt NB, Chiang JY. J Lipid Res. 1999 Dec;40(12):2195–203. PubMed Europe PMC Scholia
  10. RORgammaT, a thymus-specific isoform of the orphan nuclear receptor RORgamma / TOR, is up-regulated by signaling through the pre-T cell receptor and binds to the TEA promoter. Villey I, de Chasseval R, de Villartay JP. Eur J Immunol. 1999 Dec;29(12):4072–80. PubMed Europe PMC Scholia
  11. Mutations in the gene encoding peroxisomal alpha-methylacyl-CoA racemase cause adult-onset sensory motor neuropathy. Ferdinandusse S, Denis S, Clayton PT, Graham A, Rees JE, Allen JT, et al. Nat Genet. 2000 Feb;24(2):188–91. PubMed Europe PMC Scholia
  12. Expression cloning of an oxysterol 7alpha-hydroxylase selective for 24-hydroxycholesterol. Li-Hawkins J, Lund EG, Bronson AD, Russell DW. J Biol Chem. 2000 Jun 2;275(22):16543–9. PubMed Europe PMC Scholia
  13. Identification of PTE2, a human peroxisomal long-chain acyl-CoA thioesterase. Jones JM, Gould SJ. Biochem Biophys Res Commun. 2000 Aug 18;275(1):233–40. PubMed Europe PMC Scholia
  14. 24-hydroxycholesterol is a substrate for hepatic cholesterol 7alpha-hydroxylase (CYP7A). Norlin M, Toll A, Björkhem I, Wikvall K. J Lipid Res. 2000 Oct;41(10):1629–39. PubMed Europe PMC Scholia
  15. Cholestenoic acid is a naturally occurring ligand for liver X receptor alpha. Song C, Liao S. Endocrinology. 2000 Nov;141(11):4180–4. PubMed Europe PMC Scholia
  16. Characterization of an acyl-coA thioesterase that functions as a major regulator of peroxisomal lipid metabolism. Hunt MC, Solaas K, Kase BF, Alexson SEH. J Biol Chem. 2002 Jan 11;277(2):1128–38. PubMed Europe PMC Scholia
  17. Metabolism of 4 beta -hydroxycholesterol in humans. Bodin K, Andersson U, Rystedt E, Ellis E, Norlin M, Pikuleva I, et al. J Biol Chem. 2002 Aug 30;277(35):31534–40. PubMed Europe PMC Scholia
  18. The enzymes, regulation, and genetics of bile acid synthesis. Russell DW. Annu Rev Biochem. 2003;72:137–74. PubMed Europe PMC Scholia
  19. Identification of an endogenous ligand that activates pregnane X receptor-mediated sterol clearance. Dussault I, Yoo HD, Lin M, Wang E, Fan M, Batta AK, et al. Proc Natl Acad Sci U S A. 2003 Feb 4;100(3):833–8. PubMed Europe PMC Scholia
  20. Molecular genetics of 3beta-hydroxy-Delta5-C27-steroid oxidoreductase deficiency in 16 patients with loss of bile acid synthesis and liver disease. Cheng JB, Jacquemin E, Gerhardt M, Nazer H, Cresteil D, Heubi JE, et al. J Clin Endocrinol Metab. 2003 Apr;88(4):1833–41. PubMed Europe PMC Scholia
  21. Broad substrate specificity of human cytochrome P450 46A1 which initiates cholesterol degradation in the brain. Mast N, Norcross R, Andersson U, Shou M, Nakayama K, Bjorkhem I, et al. Biochemistry. 2003 Dec 9;42(48):14284–92. PubMed Europe PMC Scholia
  22. Mutational spectrum of D-bifunctional protein deficiency and structure-based genotype-phenotype analysis. Ferdinandusse S, Ylianttila MS, Gloerich J, Koski MK, Oostheim W, Waterham HR, et al. Am J Hum Genet. 2006 Jan;78(1):112–24. PubMed Europe PMC Scholia
  23. Mutations in the gene encoding peroxisomal sterol carrier protein X (SCPx) cause leukencephalopathy with dystonia and motor neuropathy. Ferdinandusse S, Kostopoulos P, Denis S, Rusch H, Overmars H, Dillmann U, et al. Am J Hum Genet. 2006 Jun;78(6):1046–52. PubMed Europe PMC Scholia
  24. Analysis of the mouse and human acyl-CoA thioesterase (ACOT) gene clusters shows that convergent, functional evolution results in a reduced number of human peroxisomal ACOTs. Hunt MC, Rautanen A, Westin MAK, Svensson LT, Alexson SEH. FASEB J. 2006 Sep;20(11):1855–64. PubMed Europe PMC Scholia
  25. Sterol-regulated transport of SREBPs from endoplasmic reticulum to Golgi: oxysterols block transport by binding to Insig. Radhakrishnan A, Ikeda Y, Kwon HJ, Brown MS, Goldstein JL. Proc Natl Acad Sci U S A. 2007 Apr 17;104(16):6511–8. PubMed Europe PMC Scholia
  26. 27-hydroxycholesterol is an endogenous selective estrogen receptor modulator. DuSell CD, Umetani M, Shaul PW, Mangelsdorf DJ, McDonnell DP. Mol Endocrinol. 2008 Jan;22(1):65–77. PubMed Europe PMC Scholia
  27. 27-Hydroxycholesterol is an endogenous SERM that inhibits the cardiovascular effects of estrogen. Umetani M, Domoto H, Gormley AK, Yuhanna IS, Cummins CL, Javitt NB, et al. Nat Med. 2007 Oct;13(10):1185–92. PubMed Europe PMC Scholia
  28. Crystal structures of substrate-bound and substrate-free cytochrome P450 46A1, the principal cholesterol hydroxylase in the brain. Mast N, White MA, Bjorkhem I, Johnson EF, Stout CD, Pikuleva IA. Proc Natl Acad Sci U S A. 2008 Jul 15;105(28):9546–51. PubMed Europe PMC Scholia
  29. Marked upregulation of cholesterol 25-hydroxylase expression by lipopolysaccharide. Diczfalusy U, Olofsson KE, Carlsson AM, Gong M, Golenbock DT, Rooyackers O, et al. J Lipid Res. 2009 Nov;50(11):2258–64. PubMed Europe PMC Scholia
  30. 25-Hydroxycholesterol secreted by macrophages in response to Toll-like receptor activation suppresses immunoglobulin A production. Bauman DR, Bitmansour AD, McDonald JG, Thompson BM, Liang G, Russell DW. Proc Natl Acad Sci U S A. 2009 Sep 29;106(39):16764–9. PubMed Europe PMC Scholia
  31. Cerebrospinal fluid steroidomics: are bioactive bile acids present in brain? Ogundare M, Theofilopoulos S, Lockhart A, Hall LJ, Arenas E, Sjövall J, et al. J Biol Chem. 2010 Feb 12;285(7):4666–79. PubMed Europe PMC Scholia
  32. Identification and pharmacological characterization of cholesterol-5,6-epoxide hydrolase as a target for tamoxifen and AEBS ligands. de Medina P, Paillasse MR, Segala G, Poirot M, Silvente-Poirot S. Proc Natl Acad Sci U S A. 2010 Jul 27;107(30):13520–5. PubMed Europe PMC Scholia
  33. Cholesterol oxidation products are sensitive and specific blood-based biomarkers for Niemann-Pick C1 disease. Porter FD, Scherrer DE, Lanier MH, Langmade SJ, Molugu V, Gale SE, et al. Sci Transl Med. 2010 Nov 3;2(56):56ra81. PubMed Europe PMC Scholia
  34. Disorders of bile acid synthesis. Clayton PT. J Inherit Metab Dis. 2011 Jun;34(3):593–604. PubMed Europe PMC Scholia
  35. Cholesterol 25-hydroxylation activity of CYP3A. Honda A, Miyazaki T, Ikegami T, Iwamoto J, Maeda T, Hirayama T, et al. J Lipid Res. 2011 Aug;52(8):1509–16. PubMed Europe PMC Scholia
  36. Oxysterols direct B-cell migration through EBI2. Liu C, Yang XV, Wu J, Kuei C, Mani NS, Zhang L, et al. Nature. 2011 Jul 27;475(7357):519–23. PubMed Europe PMC Scholia
  37. Oxysterols direct immune cell migration via EBI2. Hannedouche S, Zhang J, Yi T, Shen W, Nguyen D, Pereira JP, et al. Nature. 2011 Jul 27;475(7357):524–7. PubMed Europe PMC Scholia
  38. Role of a disordered steroid metabolome in the elucidation of sterol and steroid biosynthesis. Shackleton CHL. Lipids. 2012 Jan;47(1):1–12. PubMed Europe PMC Scholia
  39. 27-Hydroxycholesterol, does it exist? On the nomenclature and stereochemistry of 26-hydroxylated sterols. Fakheri RJ, Javitt NB. Steroids. 2012 May;77(6):575–7. PubMed Europe PMC Scholia
  40. The emerging role of acyl-CoA thioesterases and acyltransferases in regulating peroxisomal lipid metabolism. Hunt MC, Siponen MI, Alexson SEH. Biochim Biophys Acta. 2012 Sep;1822(9):1397–410. PubMed Europe PMC Scholia
  41. The transcription factor STAT-1 couples macrophage synthesis of 25-hydroxycholesterol to the interferon antiviral response. Blanc M, Hsieh WY, Robertson KA, Kropp KA, Forster T, Shui G, et al. Immunity. 2013 Jan 24;38(1):106–18. PubMed Europe PMC Scholia
  42. Genetic defects in bile acid conjugation cause fat-soluble vitamin deficiency. Setchell KDR, Heubi JE, Shah S, Lavine JE, Suskind D, Al-Edreesi M, et al. Gastroenterology. 2013 May;144(5):945-955.e6; quiz e14-5. PubMed Europe PMC Scholia
  43. Dendrogenin A arises from cholesterol and histamine metabolism and shows cell differentiation and anti-tumour properties. de Medina P, Paillasse MR, Segala G, Voisin M, Mhamdi L, Dalenc F, et al. Nat Commun. 2013;4:1840. PubMed Europe PMC Scholia
  44. Cerebrotendinous xanthomatosis. Björkhem I. Curr Opin Lipidol. 2013 Aug;24(4):283–7. PubMed Europe PMC Scholia
  45. 27-Hydroxycholesterol links hypercholesterolemia and breast cancer pathophysiology. Nelson ER, Wardell SE, Jasper JS, Park S, Suchindran S, Howe MK, et al. Science. 2013 Nov 29;342(6162):1094–8. PubMed Europe PMC Scholia
  46. Analysis of the human tissue-specific expression by genome-wide integration of transcriptomics and antibody-based proteomics. Fagerberg L, Hallström BM, Oksvold P, Kampf C, Djureinovic D, Odeberg J, et al. Mol Cell Proteomics. 2014 Feb;13(2):397–406. PubMed Europe PMC Scholia
  47. Human steroid and oxysterol 7α-hydroxylase CYP7B1: substrate specificity, azole binding and misfolding of clinically relevant mutants. Yantsevich AV, Dichenko YV, Mackenzie F, Mukha DV, Baranovsky AV, Gilep AA, et al. FEBS J. 2014 Mar;281(6):1700–13. PubMed Europe PMC Scholia
  48. Role of AMACR (α-methylacyl-CoA racemase) and MFE-1 (peroxisomal multifunctional enzyme-1) in bile acid synthesis in mice. Autio KJ, Schmitz W, Nair RR, Selkälä EM, Sormunen RT, Miinalainen IJ, et al. Biochem J. 2014 Jul 1;461(1):125–35. PubMed Europe PMC Scholia
  49. Oxysterols are agonist ligands of RORγt and drive Th17 cell differentiation. Soroosh P, Wu J, Xue X, Song J, Sutton SW, Sablad M, et al. Proc Natl Acad Sci U S A. 2014 Aug 19;111(33):12163–8. PubMed Europe PMC Scholia
  50. Inflammation. 25-Hydroxycholesterol suppresses interleukin-1-driven inflammation downstream of type I interferon. Reboldi A, Dang EV, McDonald JG, Liang G, Russell DW, Cyster JG. Science. 2014 Aug 8;345(6197):679–84. PubMed Europe PMC Scholia
  51. Cholestenoic acids regulate motor neuron survival via liver X receptors. Theofilopoulos S, Griffiths WJ, Crick PJ, Yang S, Meljon A, Ogundare M, et al. J Clin Invest. 2014 Nov;124(11):4829–42. PubMed Europe PMC Scholia
  52. LC-MS/MS based assay and reference intervals in children and adolescents for oxysterols elevated in Niemann-Pick diseases. Klinke G, Rohrbach M, Giugliani R, Burda P, Baumgartner MR, Tran C, et al. Clin Biochem. 2015 Jun;48(9):596–602. PubMed Europe PMC Scholia
  53. Current trends in oxysterol research. Griffiths WJ, Abdel-Khalik J, Hearn T, Yutuc E, Morgan AH, Wang Y. Biochem Soc Trans. 2016 Apr 15;44(2):652–8. PubMed Europe PMC Scholia
  54. ACOX2 deficiency: A disorder of bile acid synthesis with transaminase elevation, liver fibrosis, ataxia, and cognitive impairment. Vilarinho S, Sari S, Mazzacuva F, Bilgüvar K, Esendagli-Yilmaz G, Jain D, et al. Proc Natl Acad Sci U S A. 2016 Oct 4;113(40):11289–93. PubMed Europe PMC Scholia
  55. Bile acid analysis in human disorders of bile acid biosynthesis. Vaz FM, Ferdinandusse S. Mol Aspects Med. 2017 Aug;56:10–24. PubMed Europe PMC Scholia
  56. 27-Hydroxycholesterol, an endogenous selective estrogen receptor modulator. He S, Nelson ER. Maturitas. 2017 Oct;104:29–35. PubMed Europe PMC Scholia
  57. Identification of 7α,24-dihydroxy-3-oxocholest-4-en-26-oic and 7α,25-dihydroxy-3-oxocholest-4-en-26-oic acids in human cerebrospinal fluid and plasma. Abdel-Khalik J, Crick PJ, Yutuc E, DeBarber AE, Duell PB, Steiner RD, et al. Biochimie. 2018 Oct;153:86–98. PubMed Europe PMC Scholia
  58. Additional pathways of sterol metabolism: Evidence from analysis of Cyp27a1-/- mouse brain and plasma. Griffiths WJ, Crick PJ, Meljon A, Theofilopoulos S, Abdel-Khalik J, Yutuc E, et al. Biochim Biophys Acta Mol Cell Biol Lipids. 2019 Feb;1864(2):191–211. PubMed Europe PMC Scholia
  59. Concentrations of bile acid precursors in cerebrospinal fluid of Alzheimer’s disease patients. Griffiths WJ, Abdel-Khalik J, Yutuc E, Roman G, Warner M, Gustafsson JÅ, et al. Free Radic Biol Med. 2019 Apr;134:42–52. PubMed Europe PMC Scholia
  60. Metabolism of Non-Enzymatically Derived Oxysterols: Clues from sterol metabolic disorders. Griffiths WJ, Yutuc E, Abdel-Khalik J, Crick PJ, Hearn T, Dickson A, et al. Free Radic Biol Med. 2019 Nov 20;144:124–33. PubMed Europe PMC Scholia
  61. Oxysterols as lipid mediators: Their biosynthetic genes, enzymes and metabolites. Griffiths WJ, Wang Y. Prostaglandins Other Lipid Mediat. 2020 Apr;147:106381. PubMed Europe PMC Scholia
  62. The 5,6-epoxycholesterol metabolic pathway in breast cancer: Emergence of new pharmacological targets. de Medina P, Diallo K, Huc-Claustre E, Attia M, Soulès R, Silvente-Poirot S, et al. Br J Pharmacol. 2021 Aug;178(16):3248–60. PubMed Europe PMC Scholia
  63. Bile acid biosynthesis in Smith-Lemli-Opitz syndrome bypassing cholesterol: Potential importance of pathway intermediates. Abdel-Khalik J, Hearn T, Dickson AL, Crick PJ, Yutuc E, Austin-Muttitt K, et al. J Steroid Biochem Mol Biol. 2021 Feb;206:105794. PubMed Europe PMC Scholia